I found that the best way is to create a separate page. As mentioned in the keyboard description, you may potentially have strange navigation problems if, when you finish editing, you go to the screen you came from. This gives you a stack that looks like
List Page (then navigate to Edit Page)
List Page -> Edit Page (then hit Save)
List Page -> Edit Page -> List Page
, , . , Navigate, "GoBack", ListPage, .
List Page (then navigate to Edit Page)
List Page -> Edit Page (then hit Save)
List Page
, , , .